From Wikipedia, the free encyclopedia

Mass games or mass gymnastics
are a form of performing arts or gymnastics in which large
numbers of performers take part in a highly regimented performance
that emphasizes group dynamics rather than individual prowess.
Because of the vast scale of the performance, with often tens of
thousands of performers, mass games are performed in stadia, often accompanied by a
background of card-turners occupying the seats on the
opposite side from the viewers. Mass games are typically used to
emphasize themes of political propaganda. They developed alongside
19th century nationalist movements, particularly the CzechSokol movement, as they embodied youth, strength,
militarism, and unity.

In Bulgaria, mass games
were occasionally held during the Zname na mira ("Flag of
Peace") international youth festivals. Despite that, Bulgaria did
not have a tradition in mass games and they were performed
rarely.